If you just want to test it out, download the Portable version. It doesn't require installation and won't mess with your registry.
SourceForge still hosts the project files for many legacy browsers. Search for "Cyberfox" on SourceForge. Ensure the uploader is the verified Cyberfox project.
Check the version number (52.9.1 is the final stable release). 3. Internet Archive (Wayback Machine)
Cyberfox supports "XUL" extensions. You can find these on the Classic Add-ons Archive .
Choose the installer labeled x64 Intel or x64 AMD based on your computer's processor.
If you decide to use Cyberfox today, keep these tips in mind to improve your experience:
This guide covers the safest ways to find, download, and install Cyberfox today. What Happened to Cyberfox?